Home / 879,277.60-1,318,916.40-214,429.60

Finding the Fourth Proportional to 879,277.60, 1,318,916.40 and 214,429.60

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Solution

The fourth proportional to 879,277.60, 1,318,916.40 and 214,429.60 is: 321,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,277.60 : 1,318,916.40 = 214,429.60 : x
  2. Step 2: Convert to fraction form
    879,277.60/1,318,916.40 = 214,429.60/x
  3. Step 3: Cross multiply
    879,277.60x = 1,318,916.40 × 214,429.60
  4. Step 4: Simplify right side
    879,277.60x = 282,814,716,085.44
  5. Step 5: Solve for x
    x = 282,814,716,085.44/879,277.60
  6. Step 6: Final answer
    x = 321,644.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.